bach[9], gach[9], bega[8], ghee[8], bace[7], bece[7], echa[7], heca[7], eche[7], hece[7],
beg[7], cab[6], ach[6], cha[6], che[6], ech[6], hec[6], bee[5], ehe[5],
ba[4], be[4], ag[4], ha[4], eh[4], he[4], ce[3], ee[2],
